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Isometric & Orthographic Projections - Coggle Diagram
Isometric & Orthographic Projections
Isometric Projection
All three axes (X, Y, Z) are drawn at 120° angles
No distortion of proportions
Key Features
Useful for visualization and presentation
Gives a 3D appearance on a 2D page
Orthographic Projection
Shows exact shape and dimensions
Multiple (3+ standard views)
Types of lines
Visible lines
Hidden lines
Center lines
Why Learn Both?
Isometric: helps you and others visualize the object
Orthographic: allows precise manufacturing and analysis
Together, they give a complete understanding of an object
First and Third Angle Projections
First Angle Projection
object is placed between the observer and the plane of projection
views being projected onto the opposite side of the plane
Third Angle Projection
plane of projection is between the observer and the object
views to be projected onto the same side of the plane